package lanou.autohome.basetool;

import android.os.Handler;
import android.os.Looper;

import com.litesuits.orm.LiteOrm;
import com.litesuits.orm.db.assit.QueryBuilder;

import java.util.ArrayList;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import lanou.autohome.collection.CollectionLocalBean;


/**
 * 数据库的操作类
 * 使用单例模式,因为LiteOrm要求
 * 其他数据库框架 GreenDao,OrmLite
 */
public class DBTool {
    //liteOrm 对象,曾删改查方法 都操作此对象
    private LiteOrm mLiteOrm;
    //Handler 用来做线程切换,为了在主线程来执行回调,返回数据
    private Handler mHandler;

    //线程池
    ExecutorService threadPool = Executors.newFixedThreadPool(5);


    private static DBTool ourInstance = new DBTool();

    public static DBTool getInstance() {
        return ourInstance;
    }



    private DBTool() {
        //初始化liteOrm对象
        //使用MyApp里的全局Context
        //第二个参数是 数据库的名字
        mLiteOrm = LiteOrm.newSingleInstance(MyApp.getContext(), "MyDataBase.db");
        //初始化Handler
        //Handler的构造方法 参数如果传
        // Looper.getMainLooper()
        // 代表这个Handler 一定会回调到主线程
        // 属于严谨的写法

        mHandler = new Handler(Looper.getMainLooper());

    }

    //向数据库插入一个用户

    public void insertUser(final CollectionLocalBean localBean) {
        threadPool.execute(new Runnable() {
            @Override
            public void run() {
                mLiteOrm.insert(localBean);
            }
        });

    }

    public void set(final String s, final String a , final String e , final String y, final QueryListener queryListener){
        threadPool.execute(new Runnable() {
            @Override
            public void run() {
                QueryBuilder<CollectionLocalBean>builder = new QueryBuilder<CollectionLocalBean>(CollectionLocalBean.class);
                builder.where(s,a);
                builder.whereAppendAnd();
                builder.whereAppend(e,y);
                ArrayList<CollectionLocalBean> localBeen = mLiteOrm.query(builder);
                mHandler.post(new HandlerRunnable(localBeen, queryListener));
            }
        });
    }
    //查询用户名的方法
    public void queryUesr(final String s, final String a,final QueryListener queryListener) {
        threadPool.execute(new Runnable() {
            @Override
            public void run() {
                QueryBuilder<CollectionLocalBean>builder = new QueryBuilder<CollectionLocalBean>(CollectionLocalBean.class);
                builder.where(s,a);
                ArrayList<CollectionLocalBean> localBeen = mLiteOrm.query(builder);
                mHandler.post(new HandlerRunnable(localBeen, queryListener));
            }
        });

    }

    class HandlerRunnable implements Runnable {
        ArrayList<CollectionLocalBean> localBeen;
        QueryListener mQueryListener;

        //构造方法
        public HandlerRunnable(ArrayList<CollectionLocalBean> nativeBeen, QueryListener queryListener) {

            localBeen = nativeBeen;
            mQueryListener = queryListener;
        }

        @Override
        public void run() {
            mQueryListener.onQueryComplete(localBeen);
        }
    }

    public interface QueryListener {
        void onQueryComplete(ArrayList<CollectionLocalBean> localBeen);
    }
}

